diff --git a/flavours/freertos/local.conf.sample b/flavours/freertos/local.conf.sample
index 9b6d5f61fea11fff68d7fe6513ade0956019c860..66f0ffdc5a74cf089693381f0ffd54121d2b0eb1 100644
--- a/flavours/freertos/local.conf.sample
+++ b/flavours/freertos/local.conf.sample
@@ -69,9 +69,13 @@ PACKAGE_CLASSES ?= "package_rpm"
 # this doesn't mean anything to you.
 CONF_VERSION = "1"
 
-# Use OSTC download and sstate-cache by default. You can comment out or remove
-# those lines and use the defaults from Poky. Note that this cache is limited
-# to system configurations that are entirely re-distributable.
+# Use OSTC download cache default.
+# Note that this cache is limited to system configurations that are entirely
+# re-distributable, as determined by the OSTC legal team.
 INHERIT += "own-mirrors"
 SOURCE_MIRROR_URL = "https://cache.ostc-eu.org/bitbake/downloads"
-SSTATE_MIRRORS = "file://.* https://cache.ostc-eu.org/bitbake/sstate-cache/PATH;downloadfilename=PATH \n"
+
+# If you are building on a very slow device but have relatively reliable network access
+# *and* the project you are building has a public sstate cache, you may choose to uncomment
+# this line and use the sstate cache published by OSTC.
+# SSTATE_MIRRORS = "file://.* https://cache.ostc-eu.org/bitbake/sstate-cache/PATH;downloadfilename=PATH \n"
diff --git a/flavours/linux/local.conf.sample b/flavours/linux/local.conf.sample
index 72d38219eed72cce0fce1b428102ef4ee6d1f1e7..a2d408b08985c1be84b478b50988f6b72846d71f 100644
--- a/flavours/linux/local.conf.sample
+++ b/flavours/linux/local.conf.sample
@@ -250,9 +250,13 @@ PACKAGECONFIG_append_pn-qemu-system-native = " sdl"
 # this doesn't mean anything to you.
 CONF_VERSION = "1"
 
-# Use OSTC download and sstate-cache by default. You can comment out or remove
-# those lines and use the defaults from Poky. Note that this cache is limited
-# to system configurations that are entirely re-distributable.
+# Use OSTC download cache default.
+# Note that this cache is limited to system configurations that are entirely
+# re-distributable, as determined by the OSTC legal team.
 INHERIT += "own-mirrors"
 SOURCE_MIRROR_URL = "https://cache.ostc-eu.org/bitbake/downloads"
-SSTATE_MIRRORS = "file://.* https://cache.ostc-eu.org/bitbake/sstate-cache/PATH;downloadfilename=PATH \n"
+
+# If you are building on a very slow device but have relatively reliable network access
+# *and* the project you are building has a public sstate cache, you may choose to uncomment
+# this line and use the sstate cache published by OSTC.
+# SSTATE_MIRRORS = "file://.* https://cache.ostc-eu.org/bitbake/sstate-cache/PATH;downloadfilename=PATH \n"
diff --git a/flavours/zephyr/local.conf.sample b/flavours/zephyr/local.conf.sample
index 0b42a37101241cc6fc3bb041a5b741e0d81e8941..7e929c56cb4f46f47597b398bfbcc7981e20a076 100644
--- a/flavours/zephyr/local.conf.sample
+++ b/flavours/zephyr/local.conf.sample
@@ -252,9 +252,13 @@ PACKAGECONFIG_append_pn-qemu-system-native = " sdl"
 # this doesn't mean anything to you.
 CONF_VERSION = "1"
 
-# Use OSTC download and sstate-cache by default. You can comment out or remove
-# those lines and use the defaults from Poky. Note that this cache is limited
-# to system configurations that are entirely re-distributable.
+# Use OSTC download cache default.
+# Note that this cache is limited to system configurations that are entirely
+# re-distributable, as determined by the OSTC legal team.
 INHERIT += "own-mirrors"
 SOURCE_MIRROR_URL = "https://cache.ostc-eu.org/bitbake/downloads"
-SSTATE_MIRRORS = "file://.* https://cache.ostc-eu.org/bitbake/sstate-cache/PATH;downloadfilename=PATH \n"
+
+# If you are building on a very slow device but have relatively reliable network access
+# *and* the project you are building has a public sstate cache, you may choose to uncomment
+# this line and use the sstate cache published by OSTC.
+# SSTATE_MIRRORS = "file://.* https://cache.ostc-eu.org/bitbake/sstate-cache/PATH;downloadfilename=PATH \n"