This Terra Incognita tea infuser is a removable stopper-strainer that turns compatible thermoses into a loose-leaf brewing system, made for tea drinkers who want fresh, filtered brewing on the trail or at the desk. Crafted from 100 percent food-grade 18/8 stainless steel, it drops into the Fest, Duett, and Bullet thermos series and combines an airtight threaded seal with an ultra-fine mesh that holds back leaves while pouring cleanly.
Made by Terra Incognita, a European brand with more than 18 years of expedition experience and its own gear production, this small accessory solves a real problem: brewing loose-leaf tea in an insulated bottle without leaves ending up in your cup. As a piece of camp kitchen kit, it lets one thermos handle tea, coffee, and hot water while keeping the vacuum seal that protects your drink temperature.
Who is the Tea Infuser for?
This infuser suits anyone who already owns a compatible Terra Incognita thermos and wants to brew loose-leaf tea rather than rely on bags. It is ideal for hikers and commuters who carry hot water and steep on the go, and for home and office users who want a cleaner pour. Because it doubles as the stopper, it also replaces a lost or worn thermos lid on the Fest, Duett, and Bullet models.
What is the Tea Infuser made of?
The whole unit is made from 100 percent food-grade 18/8 stainless steel, the same corrosion-resistant grade used in quality cookware, so it handles boiling water and daily washing without rusting or holding flavors. The mesh is fine enough to filter loose leaves and sediment yet open enough for a smooth pour, and the threaded body seats into an airtight seal that keeps the vacuum insulation working as intended.
How do you brew tea with the Tea Infuser?
Add loose-leaf tea to the strainer basket, thread the stopper into your Fest, Duett, or Bullet thermos, and let it steep in hot water. When the brew is ready, the fine mesh holds the leaves back as you pour. To clean, unscrew the unit, tip out the spent leaves, and rinse the stainless steel under running water; it dries fast and stows back inside the thermos for the next trip.
Specifications
| Characteristic | Stopper-Strainer |
| Weight (US) | 1.27 oz |
| Weight (EU) | 36 g |
| Dimensions (US) | ∅1.85 × 4.92 in |
| Dimensions (EU) | ∅47 × 125 mm |
| Material | 100% Food-Grade 18/8 Stainless Steel |
| Compatible Series | Fest 750/1000, Duett 1000/1200, Bullet 750/950 |
| Color | Black |
| Connection Type | Precision Threaded Seal |
| Best Use | Tea Brewing, Coffee Infusion, Daily Commute |
| Product Type | Thermos Stopper with Tea Infuser |
Key features
- Removable strainer brews loose-leaf tea directly in your thermos, then lifts out for easy cleaning and refills
- 100 percent 18/8 stainless steel resists corrosion and rust through repeated hot brews and washes
- Precision-fit for the Fest, Duett, and Bullet thermos series, so it seats correctly instead of leaking around the thread
- Threaded design forms an airtight vacuum seal that preserves drink temperature and prevents spills in a pack
- Ultra-fine mesh blocks tea leaves and particulates while still letting water flow freely as you pour
- Light 1.27 oz weight adds almost nothing to your thermos, so it stays in place trip after trip
- Compact 1.85 x 4.92 in size stores inside the bottle when not brewing, with no separate part to lose
Who makes it
Terra Incognita has spent more than 18 years running trips and expeditions and manufacturing its own outdoor gear, so this model comes off the brand's own production line rather than a rebadged catalog. Every item carries a 12-month manufacturer warranty, and the design is tested in the field by the people who guide the trips.
Tea Infuser FAQ
Which thermoses is this infuser compatible with?
It is engineered specifically for the Terra Incognita Fest, Duett, and Bullet thermos series. The threaded design is matched to those bottles for an airtight seal, so check that your thermos is one of these models before ordering to be sure the stopper seats correctly.
What is the infuser made of?
It is made from 100 percent food-grade 18/8 stainless steel. That grade resists corrosion and rust, holds no flavors between brews, and stands up to boiling water and repeated washing, which makes it well suited to daily tea and coffee use on the trail or at home.
Does it keep tea leaves out of the cup?
Yes. The ultra-fine mesh is designed to block tea leaves and small particulates while still letting water flow freely when you pour. You get a clean cup of loose-leaf tea without a separate strainer, and the removable basket makes emptying the spent leaves simple.
Will it keep my drink hot?
Yes. The threaded stopper forms an airtight vacuum seal with the thermos, which preserves the insulation that keeps drinks hot or cold. Because it seals rather than just rests in place, it also prevents spills and leaks when the thermos is packed on its side.
Related gear
See more in Accessories Kitchen & Utensils, Kitchen & Utensils, Krab Pot Gripper, Tais Reduktor Stove.
This Terra Incognita tea infuser is a removable stopper-strainer that turns compatible thermoses into a loose-leaf brewing system, made for tea drinkers who want fresh, filtered brewing on the trail or at the desk. Crafted from 100 percent food-grade 18/8 stainless steel, it drops into the Fest, Duett, and Bullet thermos series and combines an airtight threaded seal with an ultra-fine mesh that holds back leaves while pouring cleanly.
Made by Terra Incognita, a European brand with more than 18 years of expedition experience and its own gear production, this small accessory solves a real problem: brewing loose-leaf tea in an insulated bottle without leaves ending up in your cup. As a piece of camp kitchen kit, it lets one thermos handle tea, coffee, and hot water while keeping the vacuum seal that protects your drink temperature.
Who is the Tea Infuser for?
This infuser suits anyone who already owns a compatible Terra Incognita thermos and wants to brew loose-leaf tea rather than rely on bags. It is ideal for hikers and commuters who carry hot water and steep on the go, and for home and office users who want a cleaner pour. Because it doubles as the stopper, it also replaces a lost or worn thermos lid on the Fest, Duett, and Bullet models.
What is the Tea Infuser made of?
The whole unit is made from 100 percent food-grade 18/8 stainless steel, the same corrosion-resistant grade used in quality cookware, so it handles boiling water and daily washing without rusting or holding flavors. The mesh is fine enough to filter loose leaves and sediment yet open enough for a smooth pour, and the threaded body seats into an airtight seal that keeps the vacuum insulation working as intended.
How do you brew tea with the Tea Infuser?
Add loose-leaf tea to the strainer basket, thread the stopper into your Fest, Duett, or Bullet thermos, and let it steep in hot water. When the brew is ready, the fine mesh holds the leaves back as you pour. To clean, unscrew the unit, tip out the spent leaves, and rinse the stainless steel under running water; it dries fast and stows back inside the thermos for the next trip.
Specifications
| Characteristic | Stopper-Strainer |
| Weight (US) | 1.27 oz |
| Weight (EU) | 36 g |
| Dimensions (US) | ∅1.85 × 4.92 in |
| Dimensions (EU) | ∅47 × 125 mm |
| Material | 100% Food-Grade 18/8 Stainless Steel |
| Compatible Series | Fest 750/1000, Duett 1000/1200, Bullet 750/950 |
| Color | Black |
| Connection Type | Precision Threaded Seal |
| Best Use | Tea Brewing, Coffee Infusion, Daily Commute |
| Product Type | Thermos Stopper with Tea Infuser |
Key features
- Removable strainer brews loose-leaf tea directly in your thermos, then lifts out for easy cleaning and refills
- 100 percent 18/8 stainless steel resists corrosion and rust through repeated hot brews and washes
- Precision-fit for the Fest, Duett, and Bullet thermos series, so it seats correctly instead of leaking around the thread
- Threaded design forms an airtight vacuum seal that preserves drink temperature and prevents spills in a pack
- Ultra-fine mesh blocks tea leaves and particulates while still letting water flow freely as you pour
- Light 1.27 oz weight adds almost nothing to your thermos, so it stays in place trip after trip
- Compact 1.85 x 4.92 in size stores inside the bottle when not brewing, with no separate part to lose
Who makes it
Terra Incognita has spent more than 18 years running trips and expeditions and manufacturing its own outdoor gear, so this model comes off the brand's own production line rather than a rebadged catalog. Every item carries a 12-month manufacturer warranty, and the design is tested in the field by the people who guide the trips.
Tea Infuser FAQ
Which thermoses is this infuser compatible with?
It is engineered specifically for the Terra Incognita Fest, Duett, and Bullet thermos series. The threaded design is matched to those bottles for an airtight seal, so check that your thermos is one of these models before ordering to be sure the stopper seats correctly.
What is the infuser made of?
It is made from 100 percent food-grade 18/8 stainless steel. That grade resists corrosion and rust, holds no flavors between brews, and stands up to boiling water and repeated washing, which makes it well suited to daily tea and coffee use on the trail or at home.
Does it keep tea leaves out of the cup?
Yes. The ultra-fine mesh is designed to block tea leaves and small particulates while still letting water flow freely when you pour. You get a clean cup of loose-leaf tea without a separate strainer, and the removable basket makes emptying the spent leaves simple.
Will it keep my drink hot?
Yes. The threaded stopper forms an airtight vacuum seal with the thermos, which preserves the insulation that keeps drinks hot or cold. Because it seals rather than just rests in place, it also prevents spills and leaks when the thermos is packed on its side.
Related gear
See more in Accessories Kitchen & Utensils, Kitchen & Utensils, Krab Pot Gripper, Tais Reduktor Stove.
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