Can the sliding mechanism on the (30oz) lid be disassembled for washing? My milky tea gets inside and is starting to get crusty/flaky...

I have the older version of the lid too. It usually comes out clean if you put it through the dishwasher but needs a good shake afterwards. You can also try holding it sideways under warm running water for a min and then vigorously shake it over the sink. Try the other side and repeat. Do this with the lid closed and opened.

Is there a way to keep the straw from rattling around? I use it in a quiet office and it so noisy.

You can get silicone bumpers that slide onto the straw on either side of the lid, to hold the straw in place and keep it quiet. Some products even come with tips as well as bumpers, in case you don’t care for the metal straw hitting your teeth. Amazon sells them. I have had zero rattling since I started using them, and I enjoy the tips, no burning your lips on a hot straw.

Just got mine in and I love it. I can tell I’ll need more straws so what size should I get? I like the wide straight one. What size is it?

I have a 40oz Beast which I love. I use the metal extra long straws, however, the regular size metal straws can work.

Can u use this cup without the straw

Mine has no vent which makes it difficult to get much liquid out. I’m considering returning it as I don’t like drinking out of a straw.

Beast 10 Oz Tumbler Stainless Steel Vacuum Insulated Coffee Ice

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

🦾 Mini Beast, Maximum Impact: Sip smart, stay sharp.

COMPACT POWERHOUSE - Perfect 10oz size fits effortlessly in your bag or car cup holder—ideal for busy professionals.
PURE TASTE NO COMPROMISE - Electro-polished interior ensures every sip is fresh, free from metallic aftertaste.
BUILT TO OUTLAST IMPRESS - Crafted from premium 18/8 food-grade stainless steel with a durable, non-fading powder coat.
ALL DAY TEMPERATURE MASTERY - Double-wall vacuum with copper lining locks in heat or chill for 24+ hours.
SPLASH PROOF SPILL FREE SIPPING - Innovative closable lid keeps your drink secure and mess-free on the move.

The Beast 10 oz Tumbler is a premium stainless steel travel flask engineered for superior insulation and durability. Featuring double-wall vacuum insulation with copper lining, it keeps beverages hot or cold for over 24 hours. Made from high-grade 304 18/8 food-safe stainless steel with a splash-proof closable lid and a sleek, non-fading powder coat finish, this compact tumbler is designed for professionals on the go who demand style, performance, and convenience in every sip.

Specifications

ASIN	B0BZXFRTM1
Age Range Description	Adult
Best Sellers Rank	#1,007 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #31 in Insulated Tumblers
Brand	Greens Steel
Brand Name	Greens Steel
Capacity	10 Fluid Ounces
Color	Stainless Steel
Customer Reviews	4.6 out of 5 stars 81,236 Reviews
Finish Types	Stainless Steel
Included Components	Lid
Item Dimensions W x H	3.8"W x 5.15"H
Item Type Name	Glass
Item Weight	0.3 Kilograms
Manufacturer	Greens Steel
Manufacturer Part Number	10OZ-STEEL
Material	Stainless Steel
Material Features	Insulated
Material Type	Stainless Steel
Material Type Free	BPA Free
Model Number	10OZ-STEEL
Number of Items	1
Occasion	Travel
Other Special Features of the Product	Break Resistant
Pattern	Solid
Product Care Instructions	Hand Wash Only, Machine Wash
Product Style	Modern
Recommended Uses For Product	Travel
Reusability	Reusable
Shape	Round
Size	10 Ounces
Special Feature	Break Resistant
Specific Uses For Product	Cold Drinks, Hot Drinks
Style	Modern
Theme	Sports
Unit Count	1.0 Count

Reviews

C**S

28.02.2026

W**Y

3.04.2026

O**S

4.02.2024

M**Y

16.03.2026

R**L

22.03.2026

A**R

7.04.2026

T**Y

10.03.2026

I**R

16.03.2026

M**N

1.04.2024

T**S

21.10.2025

B**E

25.01.2021

M**L

17.07.2018

P**Y

3.05.2023

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Beast 10 oz Tumbler Stainless Steel Vacuum Insulated Coffee Ice Cup Double Wall Travel Flask (Steel)

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