Steeping Tea Outdoors In The Sun? Yes & It’s Delightful!

The packaged or bottled iced tea that is available to buy is typically filled with loads of sugar and artificial colors, did you know you can make your own home brew that skips all that junk without turning on the stove or kettle?

On hot summer days, let the sun do all the work for you!

Sun tea, also known as “Old-fashioned” or “Southern” iced tea, has been one traditional way of making this beverage for many generations.

It’s made with bags of regular black tea, some water and a big ol’ glass mason jar or pitcher. Once it’s fully steeped, you’ll want to serve it over lots of ice.

I’ve listed step-by-step instructions for you below, this really couldn’t be easier to make!


(alternative Refrigerator Brewed Method and information on safety concerns are also listed towards the bottom of this page)…

Items Needed:

  • 1 large glass pitcher or jar with lid (that will accommodate 8 cups of water)
  • 6 to 8 regular size tea bags (or equivalent loose tea)


  • Fill pitcher with 8 cups of cold water then add the bags. Seal with lid.
  • Place pitcher in full sun (getting 2 to 3 hours of sunlight–up to 4 hours if you prefer a stronger brew).
  • After brewing, strain and refrigerate until fully chilled.
  • Add ice cubes and any flavorings before serving.

Is It Safe?

Although I haven’t found any documentation referencing actual cases of illness (or worse) caused by drinking this, I have come across theories that it could be a haven for bacteria growth since the water doesn’t get hot enough to kill off bacteria.

I also haven’t found any actual studies performed that have tested positive for bacteria growth in a properly prepared brew (limited time outdoors or at room temperature, properly cleaned storage/mixing items, refrigerated or iced right after brewed, etc.). As far as I know–there are no studies to refer to and safety concerns seem to be based on theories at this point.

I have come across arguments that tea’s natural anti-bacterial qualities and its caffeine content fights the bacterial growth during the few hours needed to brew this and to me that makes sense (along with proper initial preparation). It also explains why this method has been favored by many and has been practiced for decades with no problem (or if there have been issues, at this time they appear to be undocumented).

Regardless, and with no definitive proof one way or the other to refer to, I do believe this “controversy” over safety is important to note and be aware of.

  • Don’t leave outside for longer than 4 hours and should be refrigerated or poured over ice as soon as it’s done to bring it to a cool temperature quickly.
  • Use a glass container so the glass can be used to heat the water to a higher temperature than it would with a plastic container.
  • It’s very important to use clean jars, lids and utensils when making.
  • Don’t add sugar before brewing since this can make a more friendly environment for bacteria growth, add it before serving instead (same applies for fruits with their natural sugar content).
  • Do not reuse tea bags, remove and throw them out as soon as steeping is done.
  • Don’t make large amounts to be consumed over time (even if it’s refrigerated), just make an amount that you will consume that same day.
  • Some recommend boiling water for a few minutes to kill off any possible presence of bacteria then refrigerate until cold before using it.
  • Signs of bacteria growth: ropey strands or strings have developed in the liquid or the result is a thick, syrupy liquid that smells off (may indicate the presence of Alcaligenes viscolactis bacteria).

Making It In The Refrigerator

If you’re concerned about potential health problems but love the flavor of this method, you can still achieve a similar result by steeping it in the refrigerator, here’s how:

  • Prepare as noted above then instead of brewing outdoors, let it steep in the refrigerator overnight (a minimum of 8 hours for best results). Just as a high temperature prevents bacteria growth, so does cold. Remove bags and serve.

A few tips:

  • How to know when it has steeped long enough? You can tell by the color, when it’s as dark as you prefer your regular tea, it’s fine to stop.
  • Why does it take longer (or shorter) to finish from one day to the next? The time of day, intensity of the sun, location, these all can play a factor.
  • For strong flavor: Use more tea for brewing, or less water or brew longer.
  • You can sweeten with sugar, honey or fruit juices just before serving.
  • If you’re using a large glass pitcher to brew but it doesn’t have a lid, a simple fix is to use plastic wrap fitted over the top with an elastic band to secure plastic in place.
  • For a citrus flavor, try adding freshly sliced lemon, lime or orange when serving.
  • You can strain out loose bits by pouring the liquid through a coffee filter or piece of cheesecloth. You can also make loose pouches out of cheesecloth to hold the loose tea–this will make it easier to remove the bits. Just tie the pouches closed with string.
  • This method is preferred by many since it’s found to be more mild and less bitter in flavor than regularly brewed tea that has been chilled.
  • Good to Know: Pour a freshly made batch in ice cube trays, freeze and add these to the beverage when serving, this will help prevent the beverage from getting too diluted and watery from cubes made with plain water. You can also try fruit juices and bits frozen in cubes for a different twist.

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    • RonNasty64

    Does it make a difference which type of tea is used?

      • Karli

      They brewing time may vary, but I don’t think so.

    • Vanessa

    Oh my, Sun Tea. This used to be a favorite drink as a kid. My Mom always made it during the summer. And we never once got sick from the gallons of sun tea we would consume over the summer months lol.

    This page does remind me that I should make myself some sun tea and enjoy a throwback to my childhood.

    • S

    I’ve been making sun tea for many years and have NEVER had any problems with bacteria or getting sick using this method and I almost always leave my sun tea out for much longer than 4 hours. As long as I bring it in by sunset it’s still good. I like my tea strong. I’ve been known to forget it and see it outside the next day, I always dump it then, clean out the pitcher and start over if it’s left out over night. I use a 1 gallon glass jug with lid and finish the tea within a day or 2 and never add ice to it when sending it to the fridge, I only do that when I’m going to drink it and it’s still warm from the sun.

    I say mix and match flavors and see what you prefer. I myself go for the classic black tea.

    • Jess

    Would it be ok to put the sugar in while it’s brewing in the sun?

    • Molie

    NO sugar will just grow more bacteria

    • Jed

    I think everyone is forgetting that direct sunlight will kill bacteria because of the ultraviolet rays in the sunlight. Sterilizing water in clear containers in direct sunlight has proven to be quite effective. In any case, I’ve been drinking sun tea for over 40 years, and have never gotten sick from drinking it.

    • Bob

    Nothin better on a day like today (105 degrees) than a fresh gallon of sun tea by the pool! Ahhhhhhhhhhhhhhhhhhhhhh! Anybody got an extra lemon? I only got one left! lol

    • Lois

    In Chicago I found glass sun tea makers easily, now in AZ I can’t find them anywhere! Can I use a tinted plastic one instead??

    • Bosc

    I’ve made sun tea for decades. In a half gal pickle jar, fill with clean water, hang in about 8 bags of your tea ( my tea is black tea) with tags to later pull out after the water is tea infused…I’ve left the jar in directly in sun for the whole day (I get home after work and it’s ready).

    I like to add a bag of coolaid product (lemonade) for lemon flavor, and 5 bags of my favorite artificial sweetener (or to your sweet taste)
    This is extremely cheap to make, refreshing, and healthy. Cost? Maybe $.35 cents a half gallon. Footnote…I’ve only had mold problems on the underside of the metal cap rubber seal when I didn’t clean the jar out promptly

    • S Stack

    I have been making suntea for many years and have never seen a comment about what I have experienced. When you get to very close to the bottom I notice the liquid has changed color to an off white. I rinse the bottle and then use a bottle brush with soap and water but it doe not remove it all.
    Is there anyway to get rid of this buildup?

    • dennis pearson

    after making sun tea how long will it last in the fridge?

      • Tipnut

      Hi Dennis, I try to use it the same day but haven’t had any problems by sticking to the three-day rule. It may be just fine even longer but I haven’t tried it, I would just freeze leftovers instead (cubes are great).

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