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frontpagehawkblu09 | Staff posted Jun 29, 2026 6:24 PM

SEAINGO Cordless Heating Butter Knife Spreader w/ USB-C Recharge & 2 Heat Modes

$10

$30

66% off
Amazon
11.3K Views
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Deal Details
SEAINGO Official Store via Amazon has SEAINGO Cordless Heating Butter Knife Spreader on sale for $19.99 - $10 (50%) off when you apply promo code IE9VI7QP on the checkout page = $9.99. Shipping is free w/ Prime or on $35+ orders.
  • Note: Amazon promo codes don't always apply seamlessly. If you run into this issue, try refreshing the page, re-entering the code, or checking after you select a payment method to confirm whether it already applied.
Thanks to Deal Hunter hawkblu09 for sharing this deal.

About this product:
  • Heats to 107°F in 6 seconds or 158°F in 15 seconds
  • USB-C rechargeable battery with 10-minute auto shut-off
  • Blade made of 304 stainless steel for corrosion resistance
  • Integrated safety lock combines power switch and charging port
  • Hand wash only to prevent water ingress into handle

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
SEAINGO Official Store via Amazon has SEAINGO Cordless Heating Butter Knife Spreader on sale for $19.99 - $10 (50%) off when you apply promo code IE9VI7QP on the checkout page = $9.99. Shipping is free w/ Prime or on $35+ orders.
  • Note: Amazon promo codes don't always apply seamlessly. If you run into this issue, try refreshing the page, re-entering the code, or checking after you select a payment method to confirm whether it already applied.
Thanks to Deal Hunter hawkblu09 for sharing this deal.

About this product:
  • Heats to 107°F in 6 seconds or 158°F in 15 seconds
  • USB-C rechargeable battery with 10-minute auto shut-off
  • Blade made of 304 stainless steel for corrosion resistance
  • Integrated safety lock combines power switch and charging port
  • Hand wash only to prevent water ingress into handle

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Community Voting

Deal Score
+40
Good Deal
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43 Comments

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Jun 30, 2026 3:36 PM
14 Comments
Joined Mar 2020
NeatGoat2564Jun 30, 2026 3:36 PM
14 Comments
Great, another unnecessary exploding battery to tuck away in a drawer
Jun 30, 2026 4:09 PM
125 Comments
Joined Dec 2007
SkinsMckinsJun 30, 2026 4:09 PM
125 Comments
Quote from wellarmedsheep :
What is my purpose?
We're all asking the same question. What is your purpose?
Jun 30, 2026 4:11 PM
17 Comments
Joined Nov 2013
MugflubJun 30, 2026 4:11 PM
17 Comments
I literally laughed out loud when I saw this
Jul 1, 2026 12:00 AM
746 Comments
Joined Nov 2013
nocreativenameJul 1, 2026 12:00 AM
746 Comments
They won the Nobel prize for inventing this
Jul 1, 2026 12:43 AM
2.7K Comments
Joined Aug 2011
rockmoJul 1, 2026 12:43 AM
2.7K Comments
As far as inventions go...move over sliced bread!
Jul 1, 2026 1:38 AM
535 Comments
Joined Nov 2016
grayguy1Jul 1, 2026 1:38 AM
535 Comments
Quote from J03 :
False. Have Kerygold butter. Found the butter dish empty the other day and had to use it cold. Ripped the bread into pieces.
It's considerably softer. If you slice a couple of thin slices for your toast before you place your bread in the toaster, those slices will be soft enough to spread by the time the toast is done — especially if you place them on the toast and wait 15 seconds before spreading. Regular grocery store butter will not.
Jul 1, 2026 1:45 AM
535 Comments
Joined Nov 2016
grayguy1Jul 1, 2026 1:45 AM
535 Comments
Quote from PocketsThick :
Doesn't every one just store their butter on their counter top? It won't spoil. Get a butter protector thingy.
A butter bell is the answer, especially if you prefer European-style or high-fat artisan unsalted butters, which require protection from ambient air to prevent spoilage while staying soft at room temperature. The French have been using them since the late 1800s.
1

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Jul 1, 2026 2:12 AM
221 Comments
Joined Mar 2019
PragmatismJul 1, 2026 2:12 AM
221 Comments
If you cut your wrists with this will it cauterize the arteries?
Pro
Jul 1, 2026 2:10 PM
5K Comments
Joined Jun 2008
AndrewinMD
Pro
Jul 1, 2026 2:10 PM
5K Comments
Quote from grayguy1 :
It's considerably softer. If you slice a couple of thin slices for your toast before you place your bread in the toaster, those slices will be soft enough to spread by the time the toast is done — especially if you place them on the toast and wait 15 seconds before spreading. Regular grocery store butter will not.
And it tastes so much better than any other butter I've ever had in the States, and it's not even close. The secret is Irish grass. I'm not an expert, but I did go to the Irish Butter Museum in Cork. 😃
Jul 2, 2026 3:37 AM
649 Comments
Joined Nov 2025
ElatedString650Jul 2, 2026 3:37 AM
649 Comments
Quote from BrokeSlick :
Tempting. Does it also melt peanut butter?
you dont actually need to refrigerate peanut butter. look it up, it's true.
Jul 2, 2026 3:39 AM
649 Comments
Joined Nov 2025
ElatedString650Jul 2, 2026 3:39 AM
649 Comments
i've actually never had a problem with butter being too hard. you want butter to be unmelted, it tastes better. if you want to scrape off butter to spread, you can scrape small layers and it'll help melt it enough to scrape off.
Jul 2, 2026 6:43 AM
87 Comments
Joined Dec 2016
pinnerman08Jul 2, 2026 6:43 AM
87 Comments
Thanks OP!!
Jul 2, 2026 11:25 PM
23 Comments
Joined Jul 2019
AnnapolisgradJul 2, 2026 11:25 PM
23 Comments
Code worked the second time I tried it.

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