The jam'r can store three trays of fruit (each earning 1 XP) and three jarfuls of honey (each earning 1 XP). It produces one jar of jam in 60 seconds if both ingredients are in place and there are no more than two finished jars on the output bench.
One jar of jam sells for 214 coins; profit 10 (after allowing for the sale prices of honey (5) and fruit forgone (199)): that's 1.10/h if you harvest the fruit as soon as it's ready.
The raw materials are
- strawberries, which take 9 hours to grow
- clover, which grows in only 4 hours