STERILISERS AND STERILISATION 19 
for bottled fruit sold in shops or at the stores varies 
from 6d. to 1o4d. and Is. 3d. per bottle, according to 
the fruit. The quantity contained in a bottle is about 
20 to 25 oz. Let us take the cheapest fruit, goose- 
berries, as our standard, which also is the easiest to 
bottle. We must assume, for the sake of showing the 
economic value of the industry, that the fruit has to be 
bought. Where it is actually grown in the garden or 
orchard there will be the value of the fruit to add to 
the profit. 
Cost of production per bottle— 
(A) Gooseberries—2-lb. jar complete costs ; aid. 
Zaliye truit ath ide : 
Oil or other heat, say 4d. 
(this is very outside cost) dd. 
Selling price of 2-lb. bottle, 8d. 
Therefore profit per bottle, 23d, or, say, 24d. 
B steriliser, holding 12 bottles, would therefore 
give a profit of 12 x 24d.=2s. 6d. per charge. 
It can easily be charged four times a day. Therefore 
working one steriliser daily would give a profit of 
257 0d) <4 = Vos. per day. 
Multiply this by 5 working days in the week (as 
Saturday morning should be devoted to cleaning 
all utensils and general tidying), Ios. x 5=5o0s.= 
£2, Ios. per week. 
(B) Let us take Red Currants as another test in 1-lb. 
bottles, as these pack in closely. 
_I-lb. bottle complete costs ; 2hd. 
I lb. fruit costs . 24d. 
Fuel 4d. 
Sed. 
