TABLE 1.—_Composition of Pulp and of the Liquor Separated from It__Tomato products: pulp, ketchup, and chili sauce.

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| _Per | _Per | _Per | _Per | _Per | _Per Cent_

702 | 4.38 | 0.40 | 0.34 | 2.27 | 0.29 | 0.87

703 | 3.84 | 0.10 | 0.38 | 2.32 | 0.29 | 0.75

704 | 4.47 | 0.50 | 0.38 | 2.31 | 0.31 | 0.77

705 | 9.17 | 1.83 | 0.78 | 4.07 | 0.51 | 1.87

706 | 7.85 | 0.98 | 0.69 | 3.51 | 0.46 | 2.04

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The two products (705 and 706) were evaporated under exactly the

same conditions and to what appeared to the operator to be the same

consistency. After cooling, however, it was apparent that while the

body of the two finished products was apparently equal, the consistency

of No. 706 was superior to No. 705 in that the former was smooth and

creamy, whereas the latter had a somewhat irregular, lumpy appearance.

This difference was doubtless due to the greater content of soluble

solids in No. 706. The color of the two samples was identical.

A mixture of one part of No. 703 and three parts of No. 704 when

evaporated in the laboratory to the same consistency was identical in

every way with No. 706.

From the composition as stated in Table 1 it is apparent that

the flavor and food value of the clear juice, which is sometimes

discarded (represented in No. 703), are practically identical with the

unconcentrated pulp as it passes through the cyclone. In fact, the

only difference between the two appears to be about one-half per cent

of insoluble matter. When the product is allowed to separate, it seems

probable that this insoluble material as it rises in the mass has a

tendency to act like a filter and carry up with it a large proportion

of the bacteria and moulds present.

The scale on which the work was done did not permit of sufficiently

accurate measurement of the finished pulp to warrant the calculation

of the loss in quantity caused by discarding the juice. From the

composition of the pulps and of the raw material, however, it is

apparent that this loss is practically proportional to the percentage

of juice discarded.

It is apparent, therefore, that the evaporation of the material just

as it passes through the finisher will yield a product of the same

color, of better consistency, in considerably greater quantity, and

at practically the same proportionate expense of concentration as the

evaporation of the residue after discarding the juice in accordance

with the custom mentioned above.