Or boil a larger quantity and fill it into a thermos. Perfectly fine for instant coffee throughout the day. (And without the coffee stains in the thermos.)
Yep, all the instant coffee jars I’ve seen have a note to use hot but NOT boiling water. And I’ve noticed that using too hot water can even spoil the taste a bit.
I usually turn off the kettle when the noise starts noticeably changing. This usually is something between 70-80℃.
You could technically just transmit data via RDS, too. Change a letter here and there and nobody would know whether that’s a decoding error or actual ciphertext. (Would need some kind of checksum or so, of course.)
@windytan did a fascinating audio clip highlighting the RDS data stream in a radio recording some while ago:
> As of now, my only way to verify it is by literally ordering a credit card from my UK bank when I'm pretty happy with my debit cards already.
This is not true. On the screen where it wants you to scan a credit card, tap “Enter details manually”. Scroll down. Tap “Try other methods”. And there, you’ll be offered to scan an ID or your driver’s license.
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