Boolfuck, 21 bytes
+[[>+>+[<;;;]<]>+>>]>
This program outputs 330 bits (41.25 bytes) which get buffered to 42 bytes. I found it by systematically (but not quite exhaustively) searching through several million possible candidates.
Coincidentally,Here is a hexdump of the output also contains the word "coffee" in hexadecimal:
00000000: fc0f ffe3 ffc7 ffff ff1f fe3f ffff f8ff ...........?....
00000010: ffff ffff c0ff fe3f ffff ff1f ffff ffff .......?........
00000020: ff1f ffff ffff ffff fe00 ..........
I also recommend taking a look at this in fatiherikli's Brainfuck visulizer (optimized and with minimal delay of course).