ADULTERATION OF DAIRY PRODUCE[14]

The Sale of Food and Drugs Act 1899, which came into operation on the

1st of January 1900, contains several sections relating to the trade in

dairy produce in the United Kingdom. Section 1 imposes penalties in the

case of the importation of produce insufficiently marked, such as (a)

margarine or margarine-cheese, except in passages conspicuously marked

"Margarine" or "Margarine-cheese"; (b) adulterated or impoverished

butter (other than margarine) or adulterated or impoverished milk or

cream, except in packages or cans conspicuously marked with a name or

description indicating that the butter or milk or cream has been so

treated; (c) condensed separated or skimmed milk, except in tins or

other receptacles which bear a label whereon the words "machine-skimmed

milk" or "skimmed milk" are printed in large and legible type. For the

purposes of this section an article of food is deemed to be adulterated

or impoverished if it has been mixed with any other substance, or if any

part of it has been abstracted, so as in either case to affect

injuriously its quality, substance, or nature; provided that an article

of food shall not be deemed to be adulterated by reason only of the

addition of any preservative or colouring matter of such a nature and in

such quantity as not to render the article injurious to health. Section

7 provides that every occupier of a manufactory of margarine or

margarine-cheese, and every wholesale dealer in such substances, shall

keep a register showing the quantity and destination of each consignment

of such substances sent out from his manufactory or place of business,

and this register shall be open to the inspection of any officer of the

board of agriculture. Any such officer shall have power to enter at all

reasonable times any such manufactory, and to inspect any process of

manufacture therein, and to take samples for analysis. Section 8 is of

much practical importance, as it limits the quantity of butter-fat which

may be contained in margarine; it states that it shall be unlawful to

manufacture, sell, expose for sale or import any margarine the fat of

which contains more than 10% of butter-fat, and every person who

manufactures, sells, exposes for sale or imports any margarine which

contains more than that percentage shall be guilty of an offence under

the Margarine Act 1887. For the purposes of the act _margarine-cheese_

is defined as "any substance, whether compound or otherwise, which is

prepared in imitation of cheese, and which contains fat not derived from

milk"; whilst _cheese_ is defined as "the substance usually known as

cheese, containing no fat derived otherwise than from milk." The

so-called "filled" cheese of American origin, in which the butter-fat of

the milk is partially or wholly replaced by some other fat, would come

under the head of "margarine-cheese." In making such cheese a cheap form

of fat, usually of animal origin, but sometimes vegetable, is added to

and incorporated with the skim-milk, and thus takes the place previously

occupied by the genuine butter-fat. The act is regarded by some as

defective in that it does not prohibit the artificial colouring of

margarine to imitate butter.

In connexion with this act a departmental committee was appointed in

1900 "to inquire and report as to what regulations, if any, may with

advantage be made by the board of agriculture under section 4 of the

Sale of Food and Drugs Act 1899, for determining what deficiency in any

of the normal constituents of genuine milk or cream, or what addition of

extraneous matter or proportion of water, in any sample of milk

(including condensed milk) or cream, shall for the purposes of the Sale

of Food and Drugs Acts 1875 to 1899, raise a presumption, until the

contrary is proved, that the milk or cream is not genuine." Much

evidence of the highest interest to dairy-farmers was taken, and

subsequently published as a Blue-Book (Cd. 484). The report of the

committee (Cd. 491) included the following "recommendations," which were

signed by all the members excepting one:--

I. That regulations under section 4 of the Food and Drugs Act 1899 be

made by the board of agriculture with respect to milk (including

condensed milk) and cream.

II. (a) That in the case of any milk (other than skimmed, separated or

condensed milk) the total milk-solids in which on being dried at 100

deg. C. do not amount to 12% a presumption shall be raised, until the

contrary is proved, that the milk is deficient in the normal

constituents of genuine milk.

(b) That any milk (other than skimmed, separated or condensed milk)

the total milk-solids in which are less than 12%, and in which the

amount of milk-fat is less than 3.25%, shall be deemed to be

deficient in milk-fat as to raise a presumption, until the contrary

is proved, that it has been mixed with separated milk or water, or

that some portion of its normal content of milk-fat has been

removed. In calculating the percentage amount of deficiency of fat

the analyst shall have regard to the above-named limit of 3.25% of

milk-fat.

(c) That any milk (other than skimmed, separated or condensed milk)

the total milk-solids in which are less than 12%, and in which the

amount of non-fatty milk-solids is less than 8.5%, shall be deemed

to be so deficient in normal constituents as to raise a presumption,

until the contrary is proved, that it has been mixed with water. In

calculating the percentage amount of admixed water the analyst shall

have regard to the above-named limit of 8.5% of non-fatty

milk-solids, and shall further take into account the extent to which

the milk-fat may exceed 3.25%.

III. That the artificial thickening of cream by any addition of

gelatin or other substance shall raise a presumption that the cream is

not genuine.

IV. That any skimmed or separated milk in which the total milk-solids

are less than 9% shall be deemed to be so deficient in normal

constituents as to raise a presumption, until the contrary is proved,

that it has been mixed with water.

V. That any condensed milk (other than that labelled "machine-skimmed

milk" or "skimmed milk," in conformity with section 11 of the Food and

Drugs Act 1899) in which either the amount of milk-fat is less than

10%, or the amount of non-fatty milk-solids is less than 25%, shall be

deemed to be so deficient in some of the normal constituents of milk

as to raise a presumption, until the contrary is proved, that it is

not genuine.

The committee further submitted the following expressions of opinion on

points raised before them in evidence:--

(a) That it is desirable to call the attention of those engaged in the

administration of the Food and Drugs Acts to the necessity of adopting

effective measures to prevent any addition of water, separated or

condensed milk, or other extraneous matter, for the purpose of

reducing the quality of genuine milk to any limits fixed by regulation

of the board of agriculture.

(b) That it is desirable that steps should be taken with the view of

identifying or "ear-marking" separated milk by the addition of some

suitable and innocuous substance, and by the adoption of procedure

similar to that provided by section 7 of the Food and Drugs Act 1899,

in regard to margarine.

(c) That it is desirable that, so far as may be found practicable, the

procedure adopted in collecting, forwarding, and retaining pending

examination, samples of milk (including condensed milk) and cream

under the Food and Drugs Acts should be uniform.

(d) That it is desirable that, so far as may be found practicable, the

methods of analysis used in the examination of samples of milk

(including condensed milk) or cream taken under the Food and Drugs

Acts should be uniform. (e) That it is desirable in the case of

condensed milk (other than that labelled "machine-skimmed milk" or

"skimmed milk," in conformity with section 11 of the Food and Drugs

Act 1899) that the label should state the amount of dilution required

to make the proportion of milk-fat equal to that found in uncondensed

milk containing not less than 3.25% of milk-fat.

(f) That it is desirable in the case of condensed whole milk to limit,

and in the case of condensed machine-skimmed milk to exclude, the

addition of sugar.

(g) That the official standardizing of the measuring vessels

commercially used in the testing of milk is desirable.

In the minority report, signed by Mr Geo. Barham, the most important

clauses are the following:--

(a) That in the case of any milk (other than skimmed, separated or

condensed milk) the total milk-solids in which are less than 11.75%,

and in which, during the months of July to February inclusive, the

amount of milk-fat is less than 3%, and in the case of any milk which

during the months of March to June inclusive shall fall below the

above-named limit for total solids, and at the same time shall contain

less than 2.75% of fat, it shall be deemed that such milk is so

deficient in its normal constituent of fat as to raise a presumption,

for the purposes of the Sale of Food and Drugs Acts 1875 to 1899,

until the contrary is proved, that the milk is not genuine.

(b) That any milk (other than skimmed, separated or condensed milk)

the total milk-solids in which are less than 11.75%, and in which the

amount of non-fatty solids is less than 8.5%, shall be deemed to be so

deficient in its normal constituents as to raise a presumption, for

the purposes of the Sale of Food and Drugs Acts 1875 to 1899, until

the contrary is proved, that the milk is not genuine. In calculating

the amount of the deficiency the analyst shall take into account the

extent to which the milk-fat exceeds the limits above named.

(c) That any skimmed or separated milk in which the total milk-solids

are less than 8.75% shall be deemed to be so deficient in its normal

constituents as to raise a presumption, for the purpose of the Sale of

Food and Drugs Acts 1875 to 1899, until the contrary is proved, that

the milk is not genuine.

Much controversy arose out of the publication of these reports, the

opinion most freely expressed being that the standard recommended in the

majority report was too high. The difficulty of the problem is

illustrated by, for example, the diverse legal standards for milk that

prevail in the United States, where the prescribed percentage of fat in

fresh cows' milk ranges from 2.5 in Rhode Island to 3.5 in Georgia and

Minnesota, and 3.7 (in the winter months) in Massachusetts, and the

prescribed total solids range from 12 in several states (11.5 in Ohio

during May and June) up to 13 in others. Standards are recognized in

twenty-one of the states, but the remaining states have no laws

prescribing standards for dairy products. That the public discussion of

the reports of the committee was effective is shown by the following

regulations which appeared in the _London Gazette_ on the 6th of August

1901, and fixed the limit of fat at 3%:--

The board of agriculture, in exercise of the powers conferred on them

by section 4 of the Sale of Food and Drugs Act 1899, do hereby make

the following regulations:--

1. Where a sample of milk (not being milk sold as skimmed, or

separated or condensed milk) contains less than 3% of milk-fat, it

shall be presumed for the purposes of the Sale of Food and Drugs Acts

1875 to 1899, until the contrary is proved, that the milk is not

genuine, by reason of the abstraction therefrom of milk-fat, or the

addition thereto of water.

2. Where a sample of milk (not being milk sold as skimmed, or

separated or condensed milk) contains less than 8.5% of milk-solids

other than milk-fat, it shall be presumed for the purposes of the Sale

of Food and Drugs Acts 1875 to 1899, until the contrary is proved,

that the milk is not genuine, by reason of the abstraction therefrom

of milk-solids other than milk-fat, or the addition thereto of water.

3. Where a sample of skimmed or separated milk (not being condensed

milk) contains less than 9% of milk-solids, it shall be presumed for

the purposes of the Sale of Food and Drugs Acts 1875 to 1899, until

the contrary is proved, that the milk is not genuine, by reason of the

abstraction therefrom of milk-solids other than milk-fat, or the

addition thereto of water.

Encyclopaedia Britannica, 11th Edition, "Dagupan" to "David" Volume 7, Slice 9 · 第 30 / 52 题