STERILISERS AND STERILISATION 13 
the premises. It is a rapid way of dealing with large 
quantities of fruit, because, as we saw, the M.P.S., 
size A, will take bottles containing 50 Ib. of fruit at a 
charge, and it is easy to do four charges a day or 200 Ib. 
of fruit. If larger quantities have to be dealt with, 
then two or three large sterilisers can be employed at 
once. 
We omitted to remark that the Primus stove burns 
petroleum and air, and is one of the latest inventions in 
cooking-stoves. It is simple to use, and the results are 
excellent. 
The ‘‘ Wyttenbach” sterliser or Pasteuriser, to which 
allusion was made on p. 7, and the ‘ Standard” 
steriliser are constructed for factory work, or for milk- 
boiling (either sterilised or Pasteurised) in a big creamery, 
They are made of iron, and have two pipes inserted (see 
illustrations, pp. 14 and 15), one for water, the other 
for steam. They have as well an outlet for drawing off 
the water. The ‘‘ Wyttenbach” and the Standard have 
to be permanently fixed in position. They are filled with 
bottles, standing in a small quantity of water, the steam 
is turned on, and the heat rises very rapidly. The lid 
has to be clamped on to prevent the steam blowing it 
off, because very high temperatures may be necessary for 
the Pasteurising, etc., done by these machines. 
It will be well to give the prices of the sterilisers 
before leaving the subject. 
The Economic Cooker with Kettle, 25s., without, 21s. 
The Mercia Patent Steriliser— 
A size, to hold 22 to 25 bottles, complete with 
thermometer, / 4. 
B size, to hold 12 bottles, complete with 
thermometer, £3, 3s. 
C and D sizes, to hold 6 bottles, of simple con- 
struction, for household use, 18s. 
