How to sun-dry and “sweat” vanilla beans by wrapping them warm at night
Sun-dry vanilla beans on a towel during the day, then roll them up in the towel at night to keep them warm and “sweat,” repeating for about four weeks.
They explain laying beans out on a towel to dry in the sun, then rolling up the towel at night and repeating the cycle. They also explicitly call out sweating: wrapping them in a towel at night to keep them warm, over a multi-week period.
The short version
- Dry in sun by day; wrap in towel at night to sweat.
- Plan on roughly four weeks total.
- Cured beans develop the recognizable vanilla aroma over time.
What you need
- towelUsed both as a drying surface and for wrapping at night
How to do it
- 1
After boiling/shocking, lay vanilla beans out on a towel in the sun to dry during the day.
Keep them in a clean, dry place.
Watch this step - 2
At night, roll up the towel with the beans inside to keep them warm and let them “sweat.”
They emphasize keeping them warm overnight.
Watch this step - 3
Repeat the day-dry/night-wrap cycle for about four weeks.
They show progress at ~1.5 weeks, ~3 weeks, and ~4 weeks.
Watch this step - 4
Use when fully cured: beans should have a strong vanilla smell and look like typical dried vanilla pods.
Watch this step
What goes wrong
Only drying without the nightly warm wrap/sweat step
Wrap in a towel at night to keep warm and continue curing.
Why it works
Alternating drying with warm, wrapped resting (“sweating”) supports curing while gradually reducing moisture, leading to the characteristic aroma and texture of cured vanilla.
Learn next
How to split a vanilla bean to expose the seeds for extract
Slice a fresh vanilla pod lengthwise to expose the seeds, then cut it in half so it fits in the jar before adding alcohol.
How to make homemade extracts using alcohol (basic method)
Put the flavoring ingredient in a sealable jar, cover completely with pure vodka (alcohol), seal, shake, and let it infuse in a cupboard for several weeks.
Refresh vanilla extract by topping up with vodka when the jar is half empty
When your homemade vanilla extract gets down to about halfway, refill the jar with more vodka and keep shaking periodically to extend its use.
Make homemade vanilla extract with vodka and vanilla beans (jar method)
Cut vanilla beans into pieces, cover with 80-proof (or higher) vodka in a jar, then steep in a cool dark place while shaking periodically until richly colored.