Just bottled a 2.5 gallon batch of IPA that smelled amazing and tasted great, even flat. This recipe was from my own mind, with some guidance from a couple others I've seen. In any case, my question references the first batches I ever brewed, which were done with Mr. Beer LME. The Czech pilsner and also Mexican cerveza have a distinct cidery flavor that's not unbearable, but is just a bit off-putting. Is this an LME thing, a Mr. Beer thing, or perhaps the result of having an LME canister that's just past its prime. Drinkable, just not great.