Remove this from the tip in the OP : I think that we should add keywords at beginning of the tips.
Since they aren't sorted that would be a good way to find them
Search keywords : alcohol, wine, beer, psyche, attention, boost, buff, intelligence.
Drinking wine gives a temporary +10 INT.
It's very useful to boost your attention by 10 points to study more curios.
Also, a wine glass contains 0.2l of wine. Though 0.1l is enough to activate the buff.
When you drink wine, one hourglass means you drank 0.1l.
So if you don't have much wine, a good tip consists in drinking only one hourglass (not the two - you can move quickly after drinking to stop before the second one is done). This way you'll use half the wine you would have used without knowing this tip.
Though if you drink half the wine, the buff will stay half the time (but it's enough time to put some curios on).
Alcohol also raises psy a bit. So drink some wine before crafting bear cape, or jewelry...
Here is a wiki quote :
If you drink Wine or Weißbier you will get the status effect "A Glass with a Friend" which increases Psyche by 5 and later after drinking more alcohol "A Glass to Keep the Cold Out" which increases it by 7. Smoking Tobacco also gives a temporary Psyche buff which is why it is recommended that you drink alchohol and smoke tobacco before you craft products that depend on Psyche.