I’ve started trying Trader Joe’s whole bean coffee that comes in canisters. When I opened one today and poured the beans into the grinder, I noticed there was some moisture inside the can that I had not remembered ever seeing. The can says “nitrogen flushed can to help ensure freshness”. The can was fully sealed so I don’t believe anything happened after-market. Is it safe to assume the wetness inside the can is due to the nitrogen flushing or should I be concerned it’s something else abnormal?